[INFO] cloning repository https://github.com/saulvo/rust-learning
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/saulvo/rust-learning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsaulvo%2Frust-learning", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsaulvo%2Frust-learning'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 72c4c9214668bfefd3fd85bb2436e4f6041db9ef
[INFO] checking saulvo/rust-learning against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsaulvo%2Frust-learning" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/saulvo/rust-learning on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/saulvo/rust-learning
[INFO] finished tweaking git repo https://github.com/saulvo/rust-learning
[INFO] tweaked toml for git repo https://github.com/saulvo/rust-learning written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/saulvo/rust-learning already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pear_codegen v0.1.5
[INFO] [stderr]   Downloaded rocket_codegen v0.4.11
[INFO] [stderr]   Downloaded devise_codegen v0.2.1
[INFO] [stderr]   Downloaded devise v0.2.1
[INFO] [stderr]   Downloaded devise_core v0.2.1
[INFO] [stderr]   Downloaded pear v0.1.5
[INFO] [stderr]   Downloaded rocket_contrib v0.4.11
[INFO] [stderr]   Downloaded rocket_http v0.4.11
[INFO] [stderr]   Downloaded rocket v0.4.11
[INFO] [stderr]   Downloaded syn v2.0.32
[INFO] [stderr]   Downloaded serde_json v1.0.106
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 625212cefbd39eec446a688f7826f7837f544964f0d26421a7c72d68e3254436
[INFO] running `Command { std: "docker" "start" "-a" "625212cefbd39eec446a688f7826f7837f544964f0d26421a7c72d68e3254436", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "625212cefbd39eec446a688f7826f7837f544964f0d26421a7c72d68e3254436", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "625212cefbd39eec446a688f7826f7837f544964f0d26421a7c72d68e3254436", kill_on_drop: false }`
[INFO] [stdout] 625212cefbd39eec446a688f7826f7837f544964f0d26421a7c72d68e3254436
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bdd6bbc4bc46f30e39124cc7d0a420617d1578f2b3cf7d76ffbf33224817434f
[INFO] running `Command { std: "docker" "start" "-a" "bdd6bbc4bc46f30e39124cc7d0a420617d1578f2b3cf7d76ffbf33224817434f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling yansi v0.5.1
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]    Compiling tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling unicode-bidi v0.3.13
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling matches v0.1.10
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling pear_codegen v0.1.5
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling devise_core v0.2.1
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]    Compiling mime v0.2.6
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.22
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling percent-encoding v2.3.0
[INFO] [stderr]    Compiling language-tags v0.2.2
[INFO] [stderr]    Compiling typeable v0.1.2
[INFO] [stderr]     Checking net2 v0.2.39
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[INFO] [stderr]     Checking polyval v0.4.5
[INFO] [stderr]     Checking hmac v0.10.1
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]     Checking ctr v0.6.0
[INFO] [stderr]     Checking ghash v0.3.1
[INFO] [stderr]     Checking aead v0.3.2
[INFO] [stderr]    Compiling pear v0.1.5
[INFO] [stderr]     Checking hkdf v0.10.0
[INFO] [stderr]     Checking sha2 v0.9.9
[INFO] [stderr]     Checking aes v0.6.0
[INFO] [stderr]    Compiling devise_codegen v0.2.1
[INFO] [stderr]     Checking aes-gcm v0.8.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]    Compiling hyper v0.10.16
[INFO] [stderr]    Compiling rocket_codegen v0.4.11
[INFO] [stderr]     Checking unicase v1.4.2
[INFO] [stderr]    Compiling state v0.4.2
[INFO] [stderr]    Compiling smallvec v1.11.0
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]    Compiling devise v0.2.1
[INFO] [stderr]     Checking inotify-sys v0.1.5
[INFO] [stderr]    Compiling rocket v0.4.11
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]    Compiling serde_json v1.0.106
[INFO] [stderr]     Checking walkdir v2.4.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking inotify v0.7.1
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking filetime v0.2.22
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking memchr v2.6.3
[INFO] [stderr]     Checking notify v4.0.17
[INFO] [stderr]    Compiling syn v2.0.32
[INFO] [stderr]    Compiling rocket_http v0.4.11
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]     Checking rocket_contrib v0.4.11
[INFO] [stderr]     Checking rust-crud v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> src/main.rs:25:11
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn update(id: i32, hero: Json<Hero>) -> Json<Hero> {
[INFO] [stdout]    |           ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> src/main.rs:30:11
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn delete(id: i32) -> Json<JsonValue> {
[INFO] [stdout]    |           ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> src/main.rs:25:11
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn update(id: i32, hero: Json<Hero>) -> Json<Hero> {
[INFO] [stdout]    |           ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> src/main.rs:30:11
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn delete(id: i32) -> Json<JsonValue> {
[INFO] [stdout]    |           ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.48s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: traitobject v0.1.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "bdd6bbc4bc46f30e39124cc7d0a420617d1578f2b3cf7d76ffbf33224817434f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bdd6bbc4bc46f30e39124cc7d0a420617d1578f2b3cf7d76ffbf33224817434f", kill_on_drop: false }`
[INFO] [stdout] bdd6bbc4bc46f30e39124cc7d0a420617d1578f2b3cf7d76ffbf33224817434f